Shutting down a hospital’s heating and cooling system would be a patient safety disaster. 

Shutting down a hospital’s heating and cooling system would be a patient safety disaster. 

Source: cybersecurity insiders
Source Link: https://www.securitymagazine.com/blogs/14-security-blog/post/101927-disabling-hospital-hvac-is-now-a-bargaining-chip-in-ransomware